湘黔下寒武统黑色岩系有机成矿地球化学研究
The Organic Mineralization Geochemistry Research of the Black-Rock-Series in the Lower Cambrian in Hunan and Guizhou Provinces
-
摘要: 通过黑色岩系有机成矿地球化学研究,证实湘、黔两地镍钼矿床都经历了后生期的构造热变质事件,贵州遵义的地史上生过油,可以认为有机质的热成熟过程伴随有机质的热解、流体迁移、生烃、成气、排气、生油等过程。磷块岩的姥胶烷含量Pr(3.33%)和植烷含量(5.84%)均为最高,说明其生物成因最为显著。因为PGE元素的富集与有机质有关,不同热演化的成熟度不同,对应的热演化史也不相同,故可以认为有机质的芳构化效应导致PGE金属元素的超常富集。类似于其他产油地区,同样具有高饱和烃、低芳烃、高非烃、低沥青质的特征,说明为石油沥青,贵州遵义样品的甲基菲比和二甲基菲比为最高值,张家界柑子坪金属富集层的二甲基菲比1.36为最高值, 也同样说明成熟度最高。Abstract: By virtue of the organic mineralization geochemistry research, this article validates that the deposits in Hunan and Guizhou have undergone epigenetic structural hydrothermal metamorphism events. According to the geo-history in Zunyi of Guizhou province, oil has been produced in this region, thus we can acknowledge that the thermal maturation process of the organic matter was accompanied by the processes of pyrolysis, fluid migration, hydrocarbon production, gas formation, exhausting, and oil formation. The contents of pristine(Pr) and the phytene(Ph) in the phosphorite are the highest, which are 3.33% and 5.84% respectively, indicating the most remarkable biogenesis. Because the enrichment of PGE elements is related to organic matter, there is large discrepancy between the maturity of different thermal evolutions as well as their corresponding thermal evolution history. Consequently, it is believed that the aromatic structure effect of the organic matter will lead to the abnormal enrichment of the PGE metal elements. Similar to other oilfields, the study area boasts the same typical characteristics of high saturation hydrocarbon, low aromatic hydrocarbon, high non-hydrocarbon and low bitumen, indicating that the ore bed is oil bitumen. In addition, the methyl phenanthrene rate and dia-methyl phenanthrene rate in the sample from Zunyi of Guizhou is the highest, while the dia-methyl phenanthrene rate as 1.36 of the metal enrichment bed in Ganziping of Zhangjiajie, Hunan province is also the highest, confirming that both oilfields are of highest maturity.
-
Key words:
- Hunan and Guizhou /
- lower Cambrian /
- black-rock-series /
- organic mineralization /
- geochemistry
-
-
包正湘,陈延福,湘西北石煤地质及煤质特征[J].湖南地质,1988,7(3):42-496.
Bao Zhenxiang, Chen Yanfu. Geology and quality of stone coalin northwestern mountain[J]. Hunan Geology, 1988, 1988,7(3):42-49.
范德廉,杨秀珍,王连芳,等.某地下寒武含镍钼多元素黑色岩系的岩石学及地球化学特点[J].地球化学,1973,3:143-1636.
Fan Delian, Yang Xiuzhen, Wang Lianfang, et al.Petrological and geochemical characteristics of a nickel-molydenum multe element bearing lower Cambrain balck shale from a certain district in South China[J]. Geochimica, 1973,3:143-163.
范德廉,叶杰,杨瑞英,等.扬子地台前寒武/寒武纪界线附近的地质事件与成矿作用[J].沉积学报,1987,5(3):81-956.
Fan Delian, Ye Jie, Yang Ruiying,et al., The geological events and ore mineralization nearby the Precambrian-Cambrian boundary in Yangtze platform[J].Acta Sedimentological Sinica, 1987, 5(3):81-95.
李任伟,卢家烂,张淑坤,等.震旦纪和早寒武世黑色页岩有机碳同位素组成[J].中国科学(D辑),1999,29(4):351-3576.
Li Renwei, Lu Jialan, Zhang Shukun, et al., The organic carbon isotope constitution of the Sinian and early Cambrian black shale[J]. Science in China (D edition),1999,29(4):351-357.
夏学惠.河北高板河铅锌硫铁矿矿床黄铁矿生物组构与微生物成矿初探[J].矿物岩石,1994,14(1):83-896.
Xia Xuehui. Microorganic mineralization with reference of the biotextures of metallic sulfides from Gaoban deposit, Hebei[J].Journal of mineralogy and petrology, 1994,14(1):83-89.
叶杰,范德廉. 黑色岩系型矿床的形成作用及其在我国的产出特征[J]. 矿物岩石地球化学通报, 2000, 19(2):95-101.
Ye Jie,Fan Delian. Charcteristics and mineralization of ore deposits related to black shale series[J].Bulletin of Mineralogy Petrology and Geochemistry, 2000, 19(2):95-101.
许靖华,H. 奥伯京斯利,高计元,等.寒武纪生物爆发前的死劫难海洋[J].地质科学,1986,(1):1-6.
Xu Jinghua,H. Oberhansi, Grao Jiyuan, et al.Strangelove ocean before the Cambrian explosion[J]. Chinese Journal of Geology, 1986,(1):1-6.
陈安定,刘德良.寒武系烃源古油藏油裂解气特征及成藏条件[J].海相油气地质,2006,11(2):41-46.
Chen Anding, Liu Deliang, Goechemical characteristics and geological condition of Cambrian oil-cracking gas in paleoreservoir[J]. Marine Origin petroleum geology, 2006, 11(2):41-46.
江永宏.湘、黔下寒武统黑色岩系富贵金属镍钼矿床成因矿物学[R].北京:中国地质大学博士论文,2004.
Jiang Yonghong.The genetic mineralogy pf the Black-rock-series-type Ni-Mo deposits in the lower Cambrian of Hunan and Guizhou provinces[R].PhD dissertation of the China university of geosciences,Beijing,2004.
李胜荣.湘、黔地区下寒武统黑色岩系金银铂族元素地球化学研究[R].贵阳:中国科学院地球化学研究所(博士后科研论文),1994.
Li Shengrong. The elemental geochemistry research of the gold,silver and platinum group series in the lower Cambrian of Hunan and Guizhou areas[R].Geochemistry research institute of the China Academy of Science(Postdoctoral scientific thesis), Guiyang: 1994.
庄汉平,卢家烂,温汉捷,等. 热液成矿流体中的有机物质[J].地质地球化学,1997,(1):85-91.
Zhuang Hanping, Lu Jialan, Wen Hanjie,et al.,Organic matter in hydrothermal ore-forming fluid[J]. Geology-Geochemistry,1997, 1:85-91.
陈安定.海相"有效烃源岩"定义及丰度下限问题讨论[J].石油勘探与开发,2005,32(2):23-25.
Chen Anding,Definition and abundance threshold of marine source rocks developed in south China[J].Petroleum exploration and development, 2005, 32(2):23-25.
韩世庆,王守德,胡惟元.黔东麻江古油藏的发现及其地质意义[J].石油与天然气地质,1982,3(4):316-326.
Han Shiqing, Wang Shoude. The discovery of a paleopool in Majiang and its geological significance[J]. Oil and gas geology,1982, 3(4):316-326.
夏学惠,李钟模.鲕状黄铁矿的热水沉积与微生物成矿作用[J].沉积学报,1999,17(增刊):712-717.
Xia Xuehui, Li Zhongmo. Hot water deposition and micromineralization of Oolitic pyrite[J]. Acta Sedimentaologica Sinica,1999, 17(supp.):712-717.
吴朝东.湘西震旦—寒武纪地史转折期的古海洋环境与成矿作用[R].北京大学:博士后科研报告,1999.
Wu Chaodong, The paleo-oceanic environment and mineralization role in the Sinian-Cambrianpaleohistory transitional period in west Hunan[R].Peking University, Postdoctoral scientific report,1999.
赵泽恒,薛秀丽,张桂权.贵州黄平凹陷下古生界油气勘探潜力[J].海相油气地质,2007,12(3):33-43.
Zhao Zeheng,Xue Xiuli, Zhang Guiquan. Hydrothermal potential of lower paleozoic formation in Huangping Sag[J]. Marine origin petroleum geology,2007, 12(3):33-43.
K.E.彼得斯,J.M.莫尔多万.生物标记化合物指南—古代沉积物和石油中分子化石的解释[M].北京:石油工业出版社,1995.
Kenneth E. Peters and J. Michael Moldowan(Editors).The biomarker guide:interpreting molecular fossils in petroleum and ancient sediments[M]. Petroleum Industry Press,Beijing, 1995.
曹双林,潘家永,马东升,等.湘西北早寒武世黑色岩系微量元素地球化学特征[J].矿物学报,2004,24(4):415-419.
Cao Shuanglin, Pan Jiayong, Ma Dongsheng,et al.Trace element geochemical characteristics of the lower Cambrian black rock series in northwestern Hunan, South China[J]. Acta Mineralogica Sinica, 2004, 24(4):415-419.
杨卫东, 肖金凯,于炳松,等.滇黔磷块岩沉积学、地球化学与可持续发展战略[M].北京:地质出版社,1997.
Yang Weidong, Xiao Jinkai, Yu Binsong, et al. The sedimentology,geochemistry and continuable development strategy of the phosphorite in Yunnan and Guizhou provices[M].Geologic Publication House,Beijing,1997.
Farrington, J.W., Davis, A.C., Tarafa, M.E.,et al.Bitumen molecular maturity parameters in the lkpikpuk well, Alaska North Slope[J].Organic Geochemistry,1988, 13:303-310.
Radke, M., Welte, D. H., Willsch, H.Geochemical study on a well in the Western Canada Basin: Relation of the aromatic distribution pattern to maturity of organic matter[J].Geochimica et Cosmochimica Acta, 1982, 46:1-10.
Meyers P. A., Pratt L. M.Nagy B. Introduction of Geochemistry of metalliferous black shales[J].Chemical Geology, 1992, 99: Vii-xi.
Monson B.Parnell J.Metal-organic relationships from the Irish Carboniferous[J]. Chemical Geology, 1992,99:125-137.
Ulrich E. O. Ruedemannaa R.Stratigraphic significance of the wide distribution of graphtotollites[J].Geological Society of American Bulletin, 1911,22:231-237.
Pottmann W, Hagemann H W, Merz C, et al. Influence of organic material on mineralization processes in the Permian Kupfer schiefer Formation, Poland[J].Organic Geochemistry, 1988, 13:357-363.
Murowchick James B, Coveney Jr.Raymond M, et al. Cyclic variations of sulphur isotopes in Cambrian stratabound Ni-Mo-(PGE-Au) ores of southern China[J]. Geochimica et Cosmochimica Acta, 1994,58(7):1813-1823.
-
计量
- 文章访问数: 3250
- PDF下载数: 3295
- 施引文献: 0
下载: